5. Samples of sizes 100 and 80 of calculus students were acquired. The students in the...

5. Samples of sizes 100 and 80 of calculus students were acquired. The students in the first sample got into calculus by passing the pre-calculus course. Those in the second sample got in by getting a passing score on a placement test. In the first group, 65 succeeded in calculus. In the second group, 41 succeeded. Without using R find a 95% confidence interval for the difference in the success rates of the two populations.

6. For the same data, find the p-value for a test of the alternative hypothesis that the two success rates are not equal without using R.

7. Repeat problems 5 and 6 using R.

Expert Solution

orchestra answered 1 year ago

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